feat(server): configure tracing

server/src/main.rs

@@ -9,6 +9,7 @@ use repo::RepoGroupManager;
 use std::path::PathBuf;
 use std::sync::{Arc, RwLock};
 use tower_http::trace::TraceLayer;
+use tracing_subscriber::{layer::SubscriberExt, util::SubscriberInitExt};
 
 #[derive(Clone)]
 pub struct Config {
@@ -31,6 +32,13 @@ impl FromRef<Global> for Arc<RwLock<RepoGroupManager>> {
 
 #[tokio::main]
 async fn main() {
+    tracing_subscriber::registry()
+        .with(tracing_subscriber::EnvFilter::new(
+            std::env::var("RUST_LOG").unwrap_or_else(|_| "tower_http=debug".into()),
+        ))
+        .with(tracing_subscriber::fmt::layer())
+        .init();
+
     let config = Config {
         data_dir: "./data".into(),
         repo_dir: "./data/repos".into(),
@@ -43,8 +51,6 @@ async fn main() {
         repo_manager: Arc::new(RwLock::new(repo_manager)),
     };
 
-    tracing_subscriber::fmt::init();
-
     // build our application with a single route
     let app = Router::new()
         .merge(repo::router(&global))